Home / 211,192.57-316,789.92-53,421.17

Finding the Fourth Proportional to 211,192.57, 316,789.92 and 53,421.17

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Solution

The fourth proportional to 211,192.57, 316,789.92 and 53,421.17 is: 80,132.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,192.57 : 316,789.92 = 53,421.17 : x
  2. Step 2: Convert to fraction form
    211,192.57/316,789.92 = 53,421.17/x
  3. Step 3: Cross multiply
    211,192.57x = 316,789.92 × 53,421.17
  4. Step 4: Simplify right side
    211,192.57x = 16,923,288,962.58
  5. Step 5: Solve for x
    x = 16,923,288,962.58/211,192.57
  6. Step 6: Final answer
    x = 80,132.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.